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Shoshonite
Shoshonite

Anorthosite
Anorthosite



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Shoshonite
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Anorthosite

Shoshonite vs Anorthosite

Definition

Definition

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase

History

Origin

Wyoming,USA
-

Discoverer

Iddings
Unknown

Etymology

From the place of origin called Shoshone riverin Wyoming
From French anorthose plagioclase + -ite1

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Volcanic
Plutonic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock

Texture

Texture

Porphyritic
Foliated, Glassy

Color

Brown- Black, Dark Brown
Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull
Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone
As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
As Dimension Stone, Cement Manufacture, for Road Aggregate

Medical Industry

-
-

Antiquity Uses

Sculpture
Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork
Creating Artwork, Curling

Types

Types

Intermediate volcanic rock
Proterozoic Anorthosite and Archean Anorthosite

Features

Has High structural resistance against erosion and climate, Very fine grained rock
Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Shoshonite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Anorthosite is a phaneritic, intrusive igneous rock which is characterized by a predominance of plagioclase feldspar which is almost 90–100%, and a minimal mafic component.

Composition

Mineral Content

Pyroxene
Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene

Compound Content

Aluminium Oxide, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Titanium Dioxide
Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Cataclastic Metamorphism, Contact Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Wind Erosion

Properties

Physical Properties

Hardness

65-6
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Coarse Grained

Fracture

Uneven
Irregular

Streak

White to Grey
White

Porosity

Less Porous
Less Porous

Luster

Dull
Pearly to Subvitreous

Compressive Strength

175.00 N/mm2180.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

1.6
-

Specific Gravity

2.982.62-2.82
0 8.4
👆🏻

Transparency

Opaque
Translucent

Density

2.9-3 g/cm32.7-4 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia
-

Africa

South Africa
-

Europe

Iceland
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic

Others

-
-

Deposits in Western Continents

North America

Canada, USA
Canada

South America

Brazil
Bolivia, Colombia

Deposits in Oceania Continent

Australia

-
Central Australia, South Australia, Western Australia

Shoshonite vs Anorthosite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Shoshonite and Anorthosite Reserves. Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Shoshonite vs Anorthosite information and Shoshonite vs Anorthosite characteristics in the upcoming sections.

Shoshonite vs Anorthosite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Shoshonite vs Anorthosite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Shoshonite and Properties of Anorthosite. Learn more about Shoshonite vs Anorthosite in the next section. The interior uses of Shoshonite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Anorthosite include Decorative aggregates, Floor tiles, Homes and Interior decoration. Due to some exceptional properties of Shoshonite and Anorthosite, they have various applications in construction industry. The uses of Shoshonite in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Anorthosite include As dimension stone, Cement manufacture, For road aggregate.

More about Shoshonite and Anorthosite

Here you can know more about Shoshonite and Anorthosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Shoshonite and Anorthosite consists of mineral content and compound content. The mineral content of Shoshonite includes Pyroxene and mineral content of Anorthosite includes Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Shoshonite vs Anorthosite, the texture, color and appearance plays an important role in determining the type of rock. Shoshonite is available in brown- black, dark brown colors whereas, Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. Appearance of Shoshonite is Dull and that of Anorthosite is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Shoshonite vs Anorthosite. The hardness of Shoshonite is 6 and that of Anorthosite is 5-6. The types of Shoshonite are Intermediate volcanic rock whereas types of Anorthosite are Proterozoic Anorthosite and Archean Anorthosite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Shoshonite is white to grey while that of Anorthosite is white. The specific heat capacity of Shoshonite is 0.79 kJ/Kg K and that of Anorthosite is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Shoshonite is heat resistant, pressure resistant whereas Anorthosite is heat resistant, impact resistant, pressure resistant, scratch resistant, wear resistant.